<!DOCTYPE html>
<html>
    <head>
        <title>Itowns - Planar + vector-tiles</title>

        <script type="importmap">
        {
            "imports": {
                "itowns": "../dist/itowns.js",
                "debug": "../dist/debug.js",
                "dat": "https://unpkg.com/dat.gui@0.7.9/build/dat.gui.module.js",
                "GuiTools": "./jsm/GUI/GuiTools.js",
                "LoadingScreen": "./jsm/GUI/LoadingScreen.js",
                "itowns_widgets": "../dist/itowns_widgets.js",
                "three": "https://unpkg.com/three@0.170.0/build/three.module.js",
                "three/addons/": "https://unpkg.com/three@0.170.0/examples/jsm/"
            }
        }
        </script>

        <meta charset="UTF-8">
        <link rel="stylesheet" type="text/css" href="css/example.css">
        <link rel="stylesheet" type="text/css" href="css/noto.css">
        <link rel="stylesheet" type="text/css" href="css/LoadingScreen.css">

        <meta name="viewport" content="width=device-width, initial-scale=1.0">
    </head>
    <body>
        <div id="viewerDiv"></div>
        <div id="debug" width="400" height="300"></div>
        <script type="module">

            import GuiTools from 'GuiTools';
            import setupLoadingScreen from 'LoadingScreen';
            import * as THREE from 'three';
            import * as itowns from 'itowns';
            import * as debug from 'debug';
            import * as itowns_widgets from 'itowns_widgets';
            // # Planar view with one single layer of vector tile

            // Define geographic extent: CRS, min/max X, min/max Y
            var extent = new itowns.Extent(
                'EPSG:3857',
                -20037508.342789244, 20037508.342789244,
                -20037508.342789255, 20037508.342789244);

            // `viewerDiv` will contain iTowns' rendering area (`<canvas>`)
            var viewerDiv = document.getElementById('viewerDiv');

            // Instanciate PlanarView
            var view = new itowns.PlanarView(viewerDiv, extent, {
                maxSubdivisionLevel: 20,
                controls: {
                    // We do not want the user to zoom out too much
                    maxAltitude: 40000000,
                    // We want to keep the rotation disabled, to only have a view from the top
                    enableRotation: false,
                    // Don't zoom too much on smart zoom
                    smartTravelHeightMax: 100000,
                },
            });
            var menuGlobe = new GuiTools('menuDiv', view, 300);

            setupLoadingScreen(viewerDiv, view);

            // Defines a VectorTilesSource to load Vector Tiles data from the geoportail
            var mvtSource = new itowns.VectorTilesSource({
                style: "https://data.geopf.fr/annexes/ressources/vectorTiles/styles/PLAN.IGN/standard.json",
                // We don't display mountains related data to ease visualisation
                filter: (layer) => !layer['source-layer'].includes('oro_') && !layer['source-layer'].includes('parcellaire'),
            });

            var mvtLayer = new itowns.ColorLayer('MVT', {
                source: mvtSource,
                addLabelLayer: { performance: true },
            });

            view.addLayer(mvtLayer).then(menuGlobe.addLayerGUI.bind(menuGlobe));

            // Request redraw
            view.notifyChange(true);
            debug.createTileDebugUI(menuGlobe.gui, view);
            window.view = view;
            window.itowns = itowns;
            window.THREE = THREE;

        </script>
    </body>
</html>
